Base | Representation |
---|---|
bin | 101011111001111001… |
… | …011011100001001111 |
3 | 11111200102110200000021 |
4 | 223321321123201033 |
5 | 1233021404122141 |
6 | 33353514043011 |
7 | 3256141360501 |
oct | 537171334117 |
9 | 144612420007 |
10 | 47142254671 |
11 | 18aa1634756 |
12 | 9177a19467 |
13 | 45a39a4b65 |
14 | 23d2d97d71 |
15 | 135da506d1 |
hex | af9e5b84f |
47142254671 has 4 divisors (see below), whose sum is σ = 47155990192. Its totient is φ = 47128519152.
The previous prime is 47142254657. The next prime is 47142254701. The reversal of 47142254671 is 17645224174.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 47142254671 - 211 = 47142252623 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47142284671) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6862611 + ... + 6869476.
It is an arithmetic number, because the mean of its divisors is an integer number (11788997548).
Almost surely, 247142254671 is an apocalyptic number.
47142254671 is a deficient number, since it is larger than the sum of its proper divisors (13735521).
47142254671 is a wasteful number, since it uses less digits than its factorization.
47142254671 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13735520.
The product of its digits is 376320, while the sum is 43.
The spelling of 47142254671 in words is "forty-seven billion, one hundred forty-two million, two hundred fifty-four thousand, six hundred seventy-one".
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